World War 1 - 100 years ago, British and German soldiers put down their weapons, walked out into the desolation of "No-Man’s Land" and shook hands. The cause was the Christmas Cease Fire of 1914. In a moment unique to the First World War, troops were given a moment of respite from the horrors of the war when soldiers exchanged gifts, looked at each others’ family photographs and played friendly games of football with the enemy.